137479860 has 72 divisors (see below), whose sum is σ = 476601216. Its totient is φ = 31423680.

The previous prime is 137479843. The next prime is 137479861. The reversal of 137479860 is 68974731.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (137479861) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 53296 + ... + 55815.

Almost surely, 2^137479860 is an apocalyptic number.

137479860 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

137479860 is an abundant number, since it is smaller than the sum of its proper divisors (339121356).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

137479860 is a wasteful number, since it uses less digits than its factorization.

137479860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109133 (or 109128 counting only the distinct ones).

The product of its (nonzero) digits is 254016, while the sum is 45.

The square root of 137479860 is about 11725.1805956241. The cubic root of 137479860 is about 516.1148563504.

The spelling of 137479860 in words is "one hundred thirty-seven million, four hundred seventy-nine thousand, eight hundred sixty".